Table 5.

Effect of dietary soluble non-starch polysaccharide (sNSP) level and xylanase supplementation on egg quality, measured after hens were fed the dietary treatments for 28 d, at 28 wk of age.

Item	sNSP		Xylanase		SEM	P-value1
	High	Low	–	+		sNSP	Xylanase	Interaction
Egg weight, g	61.18	61.23	61.45	60.95	2.34	0.950	0.535	0.573
Breaking strength, N	49.42	49.08	48.34	50.15	3.01	0.742	0.081	0.207
Shell deformation, nm	0.296	0.296	0.294	0.298	0.01	0.662	0.444	0.687
Albumen height, mm	10.79	10.91	10.83	10.87	0.38	0.668	0.920	0.973
Haugh unit	102.3	102.8	102.4	102.7	1.63	0.626	0.581	0.834
Yolk colour score	11.50	11.56	11.38b	11.67a	0.36	0.662	0.014	0.098
Yolk weight, g	14.51	14.59	14.64	14.46	0.53	0.666	0.324	0.122
Shell weight, g	6.039	5.999	5.951	6.087	0.21	0.580	0.059	0.108
Shell thickness, mm	0.435	0.438	0.436	0.438	0.01	0.430	0.519	0.600
Shell reflectivity, %	24.12a	23.21b	23.85	23.48	1.45	0.050	0.514	0.101

^a,b Means with no common superscript within a row differ significantly (P < 0.05).

¹No significant 2-way interactions were observed (P > 0.05), so separated means are not presented.